How to understand the revival of coloured walls in recent exhibitions? Melanie Bühler takes us through the history of the white - and coloured - cube and puts the apparent end of chromophobia in context.

This summer we have invited artists to write a letter or a postcard from their temporary residencies all around the world. Today Antye Günther writes a short note to a friend from her current residency in Japan.

This summer we have invited artists to write a letter or a postcard from their temporary residencies all around the world. Today Katherine MacBride shares her impressions of Rio de Janeiro. A city that continually teaches her to unlearn and relearn.

This summer we have invited artists to write a letter or a postcard from their temporary residencies all around the world. Today Graham Kelly looks back at his residency in AIR Berlin at the Alexanderplatz in Berlin.